Carton with removable liner



NOV. 20, 1945. R BERGSTElN 2,389,291

CARTON WITH REMOVABLE LINER Filed June 12, 1944 Z SheetS- Sheei 1 g i: 6i 7 3'3 "1 I? I t .35 J, I a "H i 4 '1 :2" I, 2 ii; 1

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ROBERT igglgg t I 9 z BY 9" 1945. R. M. BERGSTEIN CARTON WITH REMOVABLELINER Filed June 12, 1944 2 Sheets-Sheet 2 v 315. I- 7 T 2 7 Z 2 L 2 r.uh.

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INVENTOR.

Patented Nov. 20, 1945' CARTON REMOVABLE LINER Robert Morris Bergstein,Cincinnati, Ohio, as-

signor to Robert Morris Bergstcin and Frank David Bergstein, trusteesApplication June 12, 1944, Serial No. 539,901

13 Claims.

My invention relates to lined cartons, such as packages which in thefilled and closed condition comprise assealed bag containing thecontents and an outer carton or box containing the bag. In my patents.No. 2,099,256, issued November 16, 1937, No, 2,250,249, issued July 22,1941,

and Re. 20,789, dated July 12, 1938, -I have shown -methods of producingvarious kinds of lined containers, while in my Patent No. 2,166,388,issued July 18, 1939, I have describedv a machine for making them.

My present invention is directed to the solution I of certain problemsconnected primarily with the use of such packages after they have comeinto the possession ofthe retail merchan. iser or the ultimate consumer.Although in the methods of forming lined cartons, it is necessary thatthe liner be attached to the carton, and although in the use and fillingof such cartons it is desirable to have the liner attached so that theact of erecting or squaring up the container will at the same timesquare up the liner and open it for filling, in the packaging of certainproducts, it is at times desirable to be able to remove the liner fromthe carton. Some commodities may be more easily handled and dispensed inthe home from a bag than from a carton. Where the bags are oftransparent material, the removal of a certain number of the filled andsealed bags from the cartons in which they are shipped may be desirablefor display purposes in retail merchandising establishments. Whereproducts are carried by the consumer, as in the case of tobacco, and areused at intervals, when the quantity of the product remaining in the bagbecomes small, it is frequently more convenient to carry it in a rolledbag or pouch than in the complete package including the outer container.

Another aspect of'the problem relates to the separation of the carton orbox from the bag. Sometimes it is desired to use the carton or a portionthereof for some other purpose in the household, which use is impeded bythe presence of an inner liner. Again, in the case of seal-end cartonscontaining sealed bags, it is difficult and frequently impossible to cutopen the carton without at the same time cutting the bag in one or moreplaces. This not only makes it impossible to reclose the bag by folding,where only a portion of its contents is used, but also makes itimpossible to dispense the contents accurately and conveniently bypouring them from a hole in the bag formed by cutting oil a corner ofthe seal.

' Thus, a problem presented by seal-end lined containers hitherto knownin the art is that of opening the container without opening the bag.

The principal objects of my invention are the solution of these andsimilar problems in lined cartons by simple changes in the constructionthereof which neither add significantly to the cost of the containersnor interfere with their manufacture, their filling and sealing, ortheir use as shipment packages.

These and other objects of my invention, which will be setforthhereinafter or will be apparent to one skilled in the art uponreading these specifications; I accomplish by that construction andarrangement of parts, of which I shall now describe certain exemplaryembodiments. Reference is made to the accompanying drawings wherein:

Figure 1 is a plan view of a blank for a so-called six-sided cartonarranged for the reception of a liner and with the liner indicated indotted lines.

Figure 2 is a plan view of the blank of Figure 1 tubed about the liner.

Figure 3 is a perspective view of the completed package.

Figure 4 is a perspective view showing the liner and contents removedfrom the carton.

Figure 5 is a plan view of a blank for a so-called I four-sided cartonadapted to receive a liner,

Figure 6 is a plan view of the blank of Figure 5 tubed about a liner.

Figure 7 is a perspective view of the completed package. a Figure 8 is aperspective view showing a portion of the container removed to permitthe sealed end of the bag tobe straightened out. s

Figure 9 is a perspective view of the bag entirely removed from thecontainer of Figure '7.

By the term liner herein, I intend to include preformed bags depositedupon the carton blanks, preformed tubes, open at both ends and depositedupon the carton blanks, or structures produced by associating linersheets with the carton blanks, then tubing the sheets as a part of thetubing operation for the cartons. It is immaterial in my inventionwhether the knocked-down tubed carton in the form in which it is shippedto the packager contains a bag closed at one end or a tube closed atneither end.

Also, modes of associatingbags, tubes or liner sheets with carton blanksand machines therefor, are not limitations upon my presentinven- 'tion;reference to my patents has been made above to indicate disclosures ofsuitable machines and methods.

Briefly, in the practice of my invention, I have found it possible toassociate the liner structures with portions of the carton body in sucha way as to fulfill all of the exigencies of lined carton manufactureand use and, by making these portions of the cartons removable from theremainder, to permit the removal of the bag from the carton or thecarton from the bag in exemplary embodiments hereinafter set forth.

In Figure 1, I have shown a carton comprising enclosing body walls I, 2,3 and 4 and a glue flap I articulated together by transverse scorelines. The carton in this instance is a so-called tuckend carton, wallsI and 3 being provided with short flaps 6 and 1. Wall 2 carries at oneend a closure flap 8 bearing an articulated tuck member I, while asimilar flap it and-tuck member ii is carried by the wall 4. Transversescore lines i2 and I! pass respectively and centrally through the wallsi and 3 and their associated flaps, and it is along these score linesthat the carton blank will be bent in tubing it.

In my Patent No. 2,114,621, a preformed liner, indicated at I I, isassociated with the blank before the blank is tubed. This liner willusually be in the form of a bag closed and sealed at one end; and thepurpose of tubing the blank upon the score lines I! and i 3 is toprovide a more natural disposition of the bottom seam when the carton isopened up. The tubing is accomplished in the ordinary way and with theordinary tubing mechanism, and involves the bending of the blank uponthe score lines aforesaid and the adhesive union of the glue flap to thewall I. The tubed structure is illustrated in Figure 2.

The liner ll must be adhered to the carton blank in order to maintainits position thereon during the tubing operation and in order to beproperly retained by the blank after the tubing operation. Moreover, theliner should be so adhered to the carton blank that when the tubedstructure is erected or squared up, the liner will also be squared .upso as to present a completely open mouth for ready filling.

Hitherto it has been the practice to adhere the liner generally to apair of opposite walls of the carton, such as the walls 2 and 4, eitherall over their meeting surfaces or at intervals throughout their meetingsurfaces. I depart from this practice and instead. I adhere th liner tothe walls 2 and I in certain restricted areas, and I surround theseareas with lines of weakening or cut lines in the boxboard, asindicated, for example, at 15 and [6 in Figure l. The shape of theseareas is not a limitation on my invention. They will, however, bepreferably restricted in size. They may be round or square, or of anyother suitable shape: but since it is desirable to have the lineradhered to walls 2 and l substantially across the faces of those walls(so that the liner will be positively opened when the carton iserected), I prefer to make the areas of adhesive application, indicatedat IT and I8, of elongated form. I am not restricted, however. to theuse of one such area for each wall. A pair of spaced areas may beemployed in each wall located close to the side edges thereof.

The manner in which the walls are weakened, as at II and I6, is,likewise, not a limitation on my invention. The board may be perforatedwith holes or'slits so as to weaken it. Cutting rules may be employed soas partially to cut through the board or so as entirely to cut throughthe board. In the first instance, the weakened areas may. be indicatedto the eye only by faint l nes in a printed carton or may, indeed, beinvisible. In the second instance, the cutting rules will be nicked atintervals so that the severed portions of the board will be retained inplace.

The complete package is shown in Figure 3. If it be desired to removethe bag from the carton without opening the bag or interfering with itssealed condition, it is necessary only to open one end of the carton andthen depress the portions of the board demarked by the weakened lines Hiand I6, whereupon the bag may b lifted bodily from the carton. The smallareas of the board so removed from the carton will remain in adhesiveunion with the bag, as shown in Figure 4 at IS. The carton itself willusually be printed with instructions indicating how the bag may beremoved; and if it is necessary, the removable portions of the board maybe outlined on the printed fac of the carton. The removable portions ofthe board may also be shaped to conform to any important symbol orlettering onthe face of the carton, so that when the bag is removedtherefrom, the portions of board adhered to it will identify it or itscontents in an eflicient and attractive manner.

Figure 5 is a plan view of a four-sided carton comprising body walls 20,2|, 22 and 23 and a glue flap 26 articulated together, as is usual insuch cartons. This carton is a so-called seal-end carton, so that thebody walls have sealing flaps 25. 26, 21 and 28 articulated to theirrespective ends along main longitudinal score lines 29 and 30. A liner,indicated in dotted lines at St, is to be associated with this blank, asset forth in my Patent No. Re. 20,789.

In the practice Of this invention, I provide the carton with one or morelongitudinal lines of weakening. In Figure 5, I have shown two such"lines at 32 and 33, located fairly close to each other and fairly closeto one end of the carton body. The liner Si is adhered to a pair ofopposite walls of the blank of Figure 5 or to all four walls, ifdesired; but the adhesive union is limited to the space between thelines of weakening, as indicated at 34.

The carton of Figure 5 is shown in tubed condition in Figure 6 and maythus be shipped to the packager. He will erect it, close the bottom ofthe liner if this has not already been done, fill it, seal the bag, andclose and seal the carton, as is known in the art, forming the completedpackage of Figure '7.

When such a package is opened by cutting one of the closures, it isdifiicult, if not impossible, to avoid cutting the liner at the sametime. But with thepackage of my invention, it is quite easy to sever theboard of the carton along the weakened line 32, which enables the entirecarton closure to be lifted off without affecting the seal of the bag.The sealed bag end may then be drawn upwardly, as shown in Figure 8; andthe bag maybe opened by cutting off a corner of the seal, as along thedotted line 35. This forms a convenient spout for the dispensing of thecontents of the bag, and the bag may bereclosed more or less tightly byfolding, as will be readily. understood.

Where the primary problem is that of opening a seal-end carton withoutdisturbing the contained bag, the second line of weakening 33 may beomitted. Where it is provided, however, it is possible to remove theentire bag from the carton, as shown in Figure 9, by breaking the boardalong this second line of weakening. The bag. as so removed, has adheredto it a continuous, rec- Where only the line of weakening 32 is provided, it is not necessary that this line pass around all four sides ofthe. carton, it being sufilcient if it pass around three of them. Thisprovides for the effective opening of the carton, but the closure partremainshinged to it, which is sometimes advantageons in protecting areclosed bag.

While the carton of Figures 1 to 4 has been illustrated as a tuck-endcarton and that of Fi ures 5 to 9 as a seal-end carton, it will beunderstood that the embodiment of my invention, illustrated in the firstgroup of figures, may be applied to the seal-end carton as well, andthat the sealend carton may be treated as indicated in Figures 1 to 4.The advantage in a seal-end carton usually lies in the removability orthe closure as such. Nevertheless, a seal-end carton may be providedwith a line of weakening, such as at 32, to permit the removal of theclosure, and also with removable areas of board, as indicated in Figures1 to 4. It may be pointed out that the removal of the bag as such (tomthe carton leaves the carton or a portion thereof usable as a box ortray to contain other articles.

Modifications may be made in my invention without departing from thespirit of it. Having described my invention, what I claim as new anddesire to secure by Letters Patent is:

1. A package comprising an outer paperboard carton and an inner tubularflexible liner, said carton having main body walls and closure means atboth ends whereby it is capable of wholly containing said liner andcontents packed therein,

said liner being in adhesive union with walls of said carton so that theact of erecting the carton results in similarly erecting a portion ofthe liner,'

the areas within which said liner is adhered to walls of said cartonbeing less in extent in said walls than the areas of the wallsthemselves, and the said areas of adhesive union being demarked in saidwalls by lines for severance, whereby by severing said areas, said linermay be removed from said carton with said areas of paperboard still inadhesive union with said liner.

2. A package comprising an outer paperboard carton and an innertubularflexible liner, said carton having main body walls and closuremeans at'both ends whereby it is capable of wholly containing said linerand contentspacked therein. said liner being in adhesive union withwalls of said carton so that the act of erecting the carton results insimilarly erecting a portion of the liner, the areas within which saidliner is adhered to walls of said carton being less in extent in saidwalls than the areas of the walls themselves, and the said areas ofadhesive union being demarked in said walls by lines for severance,whereby by severing said areas, said liner may be removed from saidcarton with said areas of paperboard still in adhesive union with saidliner, said tubular liner being sealable at both ends and removable infilled condition from said carton in the manner set forth.

3. 'A package comprising an outer paperboard carton and an inner tubularflexible liner, said carton having main body walls and closure means atboth ends whereby it is capable of wholly containing said liner andcontents packed therein, said liner being in adhesive union with wallsof said carton so that the act of erecting the carton results insimilarly erecting a portion of the liner, the areas within which saidliner is adhered to walls of said carton being less in extent in saidwalls than the areas of the walls themselves, and the said areas ofadhesive union being demarked in said walls by lines for severance,whereby by severing said areas, said liner may be removed from saidcarton with said areas of paperboard still in adhesive union with saidliner, said tubular' liner being sealable at both ends and removable infilled condition from said carton in the manner setforth, the said areasof paperboard adhered to said liner when so removed bearing identifyingindicia for the liner and its contents.

- 4. A package comprising an outer paperboard carton and an innertubular flexible liner, said carton having main body walls and closuremeans at both ends whereby it is capable of wholly containing said linerand contents packed therein, said liner being in adhesive union withwalls of said carton so that the act of erecting the carton result insimilarly erecting aportion of the liner, the areas within which saidliner is adhered to walls of said carton being less in extent in saidwalls than the areas of the wall themselves, and

the said areas of adhesive union being demarked in said wall by line forseverance, whereby by.

severing said areas, said liner may be removed from said carton withsaid areas of paperboard still in adhesive union with said liner, saidtubular liner being sealable at both ends and removable in filledcondition from said carton in the manner set forth, the said areas ofpaperboard adhered to aid liner when so removed bearing identifyingindicia for the liner and its contents, said liner being a bag oftransparent substance capable of rendering the said contents visible inat least part of the area of said liner.

5. IA package comprising an outer paperboard carton and an inner tubularflexible liner, said carton having main body walls and closure means atboth ends whereby it is capable of wholly containing said liner andcontentspacked therein. said liner being in adhesive union with walls ofsaid carton so that the act of erecting the carton results in similarlyerecting a' portion of the liner, the areas within which said liner isadhered to walls of said carton being less in extent insaid walls thanthe areas of the wall themselves, and the said areas of adhesive unionbeing demarked in said walls by lines for severance, whereby by severingsaid areas, said liner may be removed from said carton with said areasof paperboard still in adhesive union wlthsaid liner, said tubular linerbeing sealable at both ends and removable in filled condition fromsaid-carton in the manner set forth, the said areas of paperboardadhered to said liner when so removed bearing identifying indicia forthe liner and its contents,

said liner being a bag of transparent substance the total external areaof said liner.

6. A paperboard container comprising a fold-.

' able body having four enclosing walls in articulation, means at theends of said wall for effecting end closures, score lines upon which thepaperboard is bent traversing vertically an opposite pair of said sides,a tubular liner located within said carton, said liner being adhered tominor areas of the other pair of opposite enclosing walls, said minorareas having greater horizontal than ver-' tical extent, but approachinghorizontally the side edges of said walls, said areas being demarked insaid walls by lines for severance whereby said liner may be removed fromsaid container along with said areas of paperboard.

7. The structure claimed in claim 6 wherein the end closure means ofsaid container are tuckend flaps on one end at least.

8. A package comprising a paperboard carton having enclosing body wallsin articulation and seal-end flaps at the ends of. said body walls, saidcarton containing a tubular liner, said liner being adhered to walls ofsaid carton and adapted to hold contents therein, said carton having inthree adjacent sides thereof at least a line for severance, said linerbeing adhered to said carton walls at one side only of said line forseverance, said liner being capable of holding contents within saidcarton when said liner is closed and sealed at both ends, and said-linefor severance permitting at least partial detachment of one sealed endof said carton so as to disclosea sealed end of said bag.

9. The structure claimed in claim 8 wherein said line for severanceextends transversely of all walls of said carton so as to permit entireremoval of one end thereof.

10. The structure claimed in claim 8 wherein said line for severanceextends transversely of all walls of said carton so as to permit entireremoval of one end thereof, and in which a second line for severanceparallels the first line for severance, the areas of adhesive union ofsaid liner to said carton lying wholly between said two lines forseverance so that end portions of said carton may be removed from saidliner by breaking said carton on said lines of severance, said linerremaining after said removal with a band of paperboard in adhesive unionwith it.

11. In a package, a seal-end carton in sealed condition, said cartoncomprising enclosing body walls and seal-end flaps and a filled andclosed bag located within said sealed carton, said carton having itsenclosing walls traversed by a spaced pair of line for severance, saidbag being adhered to said carton walls between said lines for severance,said package being one in which carton portions at either side of saidpair of lines for severance are removable, leaving the filled and closedbag with a band of paperboard passing thereabout.

12. In a package, a seal-end carton in sealed condition, said cartoncomprising enclosing body walls and seal-end fiapsand a'filled andclosed bag located within said sealed carton, said carton having itsenclosing walls traversed by a spaced pair of lines for severance, saidbag being adhered to said carton walls between said lines for severance,said package being one in which carton portions at either side of saidpair of lines for severance are removable, leaving the filled and closedbag with a band of paperboard passing thereabout, said bag of paperboardbearing indicia identifying said bag and its contents.

13. In a package, a seal-end carton in sealed condition, said cartoncomprising enclosing body walls and seal-end flaps and a filled andclosed bag located within said sealed carton, said carton having itsenclosing walls traversed by a spaced pair of lines for severance, saidbag being adhered to said carton walls between said line for severance,said package being one in which carton portions at either side of saidpair of lines for severance are removable, leaving the filled and closedbag with a band of paperboard passing thereabout, said bag of paperboardbearing indicia identifying said bag and its contents, said bag being inpart at least of translucent material.

.ROBERT MORRIS ,BERGSTEIN.

